3949206850 has 12 divisors (see below), whose sum is σ = 7345524834. Its totient is φ = 1579682720.

The previous prime is 3949206841. The next prime is 3949206857. The reversal of 3949206850 is 586029493.

It can be written as a sum of positive squares in 3 ways, for example, as 2143041849 + 1806165001 = 46293^2 + 42499^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3949206850.

It is not an unprimeable number, because it can be changed into a prime (3949206857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39492019 + ... + 39492118.

Almost surely, 2^3949206850 is an apocalyptic number.

3949206850 is a deficient number, since it is larger than the sum of its proper divisors (3396317984).

3949206850 is a wasteful number, since it uses less digits than its factorization.

3949206850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78984149 (or 78984144 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 3949206850 is about 62842.7151704953. The cubic root of 3949206850 is about 1580.6533176542.

The spelling of 3949206850 in words is "three billion, nine hundred forty-nine million, two hundred six thousand, eight hundred fifty".